/*
 * Copyright (C) 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.sites.liberation.renderers;

import com.google.gdata.data.sites.BaseContentEntry;
import com.google.gdata.data.sites.BasePageEntry;
import com.google.sites.liberation.util.XmlElement;

import java.util.List;

/**
 * Renders the links to a page's ancestors.
 * 
 * @author bsimon@google.com (Benjamin Simon)
 */
final class AncestorLinksRendererImpl implements AncestorLinksRenderer {

  @Override
  public XmlElement renderAncestorLinks(List<BasePageEntry<?>> ancestors) {
    XmlElement div = new XmlElement("div");
    for (int i = 0; i < ancestors.size(); i++) {
      BaseContentEntry<?> ancestor = ancestors.get(i);
      String path = "";
      for (int j = 0; j < ancestors.size() - i; j++) {
        path += "../";
      }
      XmlElement link = RendererUtils.getHyperLink(path + "index.html", 
          ancestor.getTitle().getPlainText());
      div.addElement(link);
      div.addText(" > ");
    }
    return div;
  }
}
